import { LogItem } from '../LogItem';
import { Interceptor } from './Interceptor';

/**
 * Copyright (c) 2024 michael <michael1995415@gmail.com>
 * Base On (c) 2023 Wathinst <wxz@xkzhineng.com>
 * xlog is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 * http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

export abstract class AbstractFilterInterceptor extends Interceptor {
  intercept(log: LogItem): LogItem | null {
    if (this.reject(log)) {
      // Filter this log out.
      return null;
    }
    return log;
  }

  protected abstract reject(log: LogItem): boolean;
}